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| - | [[Image:1g39.gif|left|200px]] | |
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| - | <!--
| + | ==WILD-TYPE HNF-1ALPHA DIMERIZATION DOMAIN== |
| - | The line below this paragraph, containing "STRUCTURE_1g39", creates the "Structure Box" on the page.
| + | <StructureSection load='1g39' size='340' side='right'caption='[[1g39]], [[Resolution|resolution]] 1.22Å' scene=''> |
| - | You may change the PDB parameter (which sets the PDB file loaded into the applet)
| + | == Structural highlights == |
| - | or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
| + | <table><tr><td colspan='2'>[[1g39]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G39 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1G39 FirstGlance]. <br> |
| - | or leave the SCENE parameter empty for the default display.
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.22Å</td></tr> |
| - | -->
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1g39 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1g39 OCA], [https://pdbe.org/1g39 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1g39 RCSB], [https://www.ebi.ac.uk/pdbsum/1g39 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1g39 ProSAT]</span></td></tr> |
| - | {{STRUCTURE_1g39| PDB=1g39 | SCENE= }}
| + | </table> |
| - | | + | == Function == |
| - | '''WILD-TYPE HNF-1ALPHA DIMERIZATION DOMAIN'''
| + | [https://www.uniprot.org/uniprot/HNF1A_MOUSE HNF1A_MOUSE] Transcriptional activator that regulates the tissue specific expression of multiple genes, especially in pancreatic islet cells and in liver. Required for the expression of several liver specific genes. Binds to the inverted palindrome 5'-GTTAATNATTAAC-3'.<ref>PMID:19289501</ref> <ref>PMID:10966642</ref> |
| - | | + | == References == |
| - | | + | <references/> |
| - | ==Overview== | + | __TOC__ |
| - | The N-terminal dimerization domain of the transcriptional activator hepatocyte nuclear factor-1alpha (HNF-1alpha) is essential for DNA binding and association of the transcriptional coactivator, DCoH (dimerization cofactor of HNF-1). To investigate the basis for dimerization of HNF-1 proteins, we determined the 1.2 A resolution X-ray crystal structure of the dimerization domain of HNF-1alpha (HNF-p1). Phasing was facilitated by devising a simple synthesis for Fmoc-selenomethionine and substituting leucine residues with selenomethionine. The HNF-1 dimerization domain forms a unique, four-helix bundle that is preserved with localized conformational shifts in the DCoH complex. In three different crystal forms, HNF-p1 displays subtle shifts in the conformation of the interhelix loop and the crossing angle between the amino- and carboxyl-terminal helices. In all three crystal forms, the HNF-p1 dimers pair through an exposed hydrophobic surface that also forms the binding site for DCoH. Conserved core residues in the dimerization domain of the homologous transcriptional regulator HNF-1beta rationalize the functional heterodimerization of the HNF-1alpha and HNF-1beta proteins. Mutations in HNF-1alpha are associated with maturity-onset diabetes of the young type 3 (MODY3), and the structure of HNF-p1 provides insights into the effects of three MODY3 mutations.
| + | </StructureSection> |
| - | | + | [[Category: Large Structures]] |
| - | ==About this Structure== | + | [[Category: Mus musculus]] |
| - | 1G39 is a [[Single protein]] structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G39 OCA].
| + | [[Category: Alber T]] |
| - | | + | [[Category: Cronk JD]] |
| - | ==Reference== | + | [[Category: Endrizzi JA]] |
| - | High-resolution structure of the HNF-1alpha dimerization domain., Rose RB, Endrizzi JA, Cronk JD, Holton J, Alber T, Biochemistry. 2000 Dec 12;39(49):15062-70. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11106484 11106484]
| + | [[Category: Holton J]] |
| - | [[Category: Single protein]] | + | [[Category: Rose RB]] |
| - | [[Category: Alber, T.]] | + | |
| - | [[Category: Cronk, J D.]] | + | |
| - | [[Category: Endrizzi, J A.]] | + | |
| - | [[Category: Holton, J.]] | + | |
| - | [[Category: Rose, R B.]] | + | |
| - | [[Category: Dimerization domain]] | + | |
| - | [[Category: Four-helix bundle]] | + | |
| - | [[Category: Transcription factor]] | + | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 17:04:59 2008''
| + | |
| Structural highlights
Function
HNF1A_MOUSE Transcriptional activator that regulates the tissue specific expression of multiple genes, especially in pancreatic islet cells and in liver. Required for the expression of several liver specific genes. Binds to the inverted palindrome 5'-GTTAATNATTAAC-3'.[1] [2]
References
- ↑ Servitja JM, Pignatelli M, Maestro MA, Cardalda C, Boj SF, Lozano J, Blanco E, Lafuente A, McCarthy MI, Sumoy L, Guigo R, Ferrer J. Hnf1alpha (MODY3) controls tissue-specific transcriptional programs and exerts opposed effects on cell growth in pancreatic islets and liver. Mol Cell Biol. 2009 Jun;29(11):2945-59. doi: 10.1128/MCB.01389-08. Epub 2009 Mar , 16. PMID:19289501 doi:http://dx.doi.org/10.1128/MCB.01389-08
- ↑ Rose RB, Bayle JH, Endrizzi JA, Cronk JD, Crabtree GR, Alber T. Structural basis of dimerization, coactivator recognition and MODY3 mutations in HNF-1alpha. Nat Struct Biol. 2000 Sep;7(9):744-8. PMID:10966642 doi:10.1038/78966
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